\documentclass[11pt]{ctexart}
\input{face.tex}
% \newtheorem{defn}{定义}
\newtheorem{defn}{Definition}[section]
\newtheorem{reg}{Rule}
\newtheorem{lem}{引理}
\newtheorem{exer}{Exercise}
\newtheorem{example}{Example}[section]
\everymath{\displaystyle}
\newtheorem{pro}{Proposition}[section]
\newtheorem{ans}{Answer}
\newtheorem{que}{Question}
\newtheorem{note}{Note}
\newtheorem{theorem}{Theorem}[section]
\newtheorem{coro}{Corollary}[section]
\newtheorem{remark}{\indent 注}
% \newtheorem*{prof}{证明}
\newcommand*{\pos}{{\rm Pos}}
\renewcommand*{\proofname}{\indent\textbf{proof}}
\renewcommand*{\Im}{\mathrm{Im\ }}
\renewcommand*{\ker}{\mathrm{Ker\ }}
\renewcommand*{\u}[1]{\underline #1}
\newcommand*{\fan}[1]{\left\Vert #1 \right\Vert}
\title{粒计算前沿——读书报告}
\author{杨泽天}
\begin{document}

\input{title.tex}
\newpage
\pagenumbering{roman}
\setcounter{page}{1}
% \subfile{sections/abstract}

\newpage
\pagenumbering{Roman}
\setcounter{page}{1}
\begin{spacing}{0.5}
\tableofcontents
\end{spacing}
\newpage
\setcounter{page}{1}
\pagenumbering{arabic}
% -------------------------------------------------
% \subfile{sections/经典}
% -------------------------------------------------
% \subfile{sections/模糊粗糙集}
% \newpage
% -------------------------------------------------
\subfile{sections/聚类算法}
\newpage
% -------------------------------------------------
\subfile{sections/属性约简.tex}
% -------------------------------------------------
\subfile{sections/粒球计算.tex}

\newpage
\bibliographystyle{elsarticle-num}
\bibliography{cite.bib} 
\end{document}